Home / 1,152,997,009.30-1,729,495,513.95-531,211,039.30

Finding the Fourth Proportional to 1,152,997,009.30, 1,729,495,513.95 and 531,211,039.30

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Solution

The fourth proportional to 1,152,997,009.30, 1,729,495,513.95 and 531,211,039.30 is: 796,816,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,997,009.30 : 1,729,495,513.95 = 531,211,039.30 : x
  2. Step 2: Convert to fraction form
    1,152,997,009.30/1,729,495,513.95 = 531,211,039.30/x
  3. Step 3: Cross multiply
    1,152,997,009.30x = 1,729,495,513.95 × 531,211,039.30
  4. Step 4: Simplify right side
    1,152,997,009.30x = 918,727,109,430,067,200
  5. Step 5: Solve for x
    x = 918,727,109,430,067,200/1,152,997,009.30
  6. Step 6: Final answer
    x = 796,816,558.95

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.